Cesspool mold



June 8, 1954 D. FILANGERI 2,680,276

cEssPoor. MOLD Filed Feb. '7, 1952 2 Sheets-Shea?I 2 Patented June 8, n1954 UNITED STATES PATENT OFFICE CESSPOOL MOLD Dominick Filangeri, Brooklyn, N. Y. Application February 7, 1952, Serial No. 270,340

7 claims. l

This invention relates to moulds or forms for use in the manufacture of concrete articles, and is intended primarily for moulding the bodies or walls of cesspools or catch basins for rural plumbing installations and the like.

One object of the invention is to provide a simple and eiective mould construction which may be quickly and easily assembled for use and masr be readily disassembled for removal from the moulded cesspool after the concrete has set.

The mould includes inner and outer sectional walls spaced apart to provide a moulding space, and a further object is to make novel provision for holding the mould sections in assembled relation.

A still further object is to provide a mould including a central base-supported post, and novel means for detachably connecting the inner wall sections with said post.

Another object is to provide one of the spaced mould walls with a plurality of core pins projectable across the moulding space to form drainage openings in the molded concrete cesspool, said core pins being readily retractible after the concrete has set.

Yet another object is to provide novel and easily operable means for retracting the mould pins,

Still another object is to make novel provision whereby one operation of one lever will retract a plurality of the core pins.

A still further object is to provide a relatively simple mould construction which may be expeditiously manufactured and profitably marketed at a reasonable price.

With the above and other objects in View, as will be presently apparent, the invention consists in general of the novel form, combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings and particularly claimed.

In the drawings, like characters of reference indicate like parts in the several views, and

Figure l is a vertical sectional view of the mould in use, showing the core pins at the right projected and at the left retracted, elements which would appear in the background being omitted to avoid confusion;

Figure 2 is a horizontal sectional view substantially on the plane of line 2-2 of Figure l although some of the core pins are shown in section Vbelow that plane, and the operating means for these pins are omitted to avoid unnecessary duplication;

Figure 3 is a fragmentary outer side elevation showing the upper end portion of one of the inner wall sections and its hooks;

Figure 4 is a fragmentary perspective view showing a portion of one of the core pin 0.011- necting members; and

Figure 5 is a detail vertical section disclosing a slight modification at the lower end of the inner mould wall.

An inner wall 6 and an outer wall l are provided, said walls being spaced apart to provide a moulding space 8 into which to pour the concrete 9. The inner wall 6 comprises a cylindrical main portion lll, a cylindrical upper end portion l I of much smaller diameter, and a frusto-conical portion I2 permanently connecting said main and upper end portions. The outer wall l also is of this same shape. The lower end of the inner wall B is simply flanged inwardly at i3 in Figure 1 but is provided in Figure 5 with an inward offset l3a to form a thickened lower end 9a on the moulded cesspool wall. Y

Both the inner and outer walls 6 and 'I are formed from segmental sections extending from end to end thereof. \These sections may be of any desired number, say siX or eight for the inner and three or four for the outer wall. The alternate sections of the inner wall 6 are designated at 6a and the intervening sections at 6b. The vertical edges of the sections 6b lap onto the outer sides of the edge portions of said sections 6a as shown at 6c in Figure 2. Angle iron bars Ed are provided to reinforce the sections 5a and 6b, and those of the sections Eb are spaced inwardly from the edges of these sections suiiiciently to prevent them from interfering with inward swinging of the sections 6a when disassembling the mould.

Lap joints 'la are provided for the outer wall sections lb and these sections are detachably connected by hinges le. The hinge pins l5 of these hinges are readily removable from the usual knuckles to allow separation of the sections 'lb when they are to be taken off from the moulded cesspool. The edges ofthe sections lb are suitably reinforced, and to prevent outward bulging of these sections, they are preferably surrounded by at ,least one clamp band I 6. The upper ends of these sections 1b are provided with permanently attached hooks l1 which engage the upper end of the inner wall G and hold the two walls in correctly spaced relation.

A central post I8 is disposed within the confines of the inner wall 6 and is secured to a base I9 which rests on the pallet or the like 2d upon which the cesspool is to be moulded at the factory or elsewhere. The base i9 is sufciently small to allow upward passage through the reduced upper end of the wall 6 when disassembling the mould.

A sleeve 2| slidably surrounds the upper portion of the post i8 and is normally held against descent thereon by a pin 22. The lower end of this sleeve 2i carries a disk 2 la having a peripheral upwardly projecting ange 23 within the upper end portion Il of the inner wall 6. The sections 6a and 6b of this wall have permanently attached hooks 24 which are hooked over the iiange 23 when assembling said sections, thereby initially connecting these sections with the post |8.

Below the disk 2|a, the post i8 carries flanges 25 held in place by pins 26. By removing the pin of the upper ange, the latter may be dropped to give more room for a man working inside the mould when disassembling it. A manhole 2lb in the disk 2|a permits this workman to enter. Each ange 25 has circumferentially spaced openings 21 equal in number to the inner wall sections Sa and 6b, and these openings receive downwardly directed hooks 28 on radical tie rods 29. The outer ends of these tie rods are bifurcated at 30 to straddle the adjacent angle bars 6d, and the furcations have downwardly directed hooks 3| engaging apertured lugs 32 on said angle bars. Thus, the tie rods 29 hold the inner wall solidly in place but may be readily removed when the mould is to be disassembled.

The inner wall sections Sa and 6b are provided with tubular core pin guides 33 uniformly inclined inwardly. These guides slidably and removably receive core pins 34 which may be tubular if desired. These core pins are projectable 1 across the moulding space 8 to form drainage openings 35 in the cesspool wall and are retractible from these openings when the mould is to be disassembled. Three of the core pins 34 are shown for each inner wall section 6a and tb two of these pins being widely spaced apart on a vertical line while the third is circumferentially spaced from said line and disposed at an elevation between said two pins. These two pins are loosely connected at 36 with a vertical connecting bar 31 which is preferably a metal channel. The third core pin is loosely connected at 3B with a short bar 39 spaced laterally from bar 31. The two bars 31 and 39 are rigidly connected by a plate 40 and constitute a unitary connecting member for the three core pins. A lever 4| is fulcrumed at 42 to swing upwardly against the lower edge of the plate 40 as shown at the left of Figure 1, thus permitting the workman within the mould to upwardly force the bars 31 and 39 to retract the core pins after the concrete has set. Then the various bars 31 and 39 with the attached core pins can be passed out of the mould to another workman, leaving the inner wall sections Ga and 6b free from encumbrance when releasing these sections and passing them out. The release of these sections entails removal of 4 after which the sections Bb may be handled in the same manner.

The outer wall sections 1b are readily removable by removing the clamping band I6 and some or all of the hinge pins l5.

In assembling the mould, the sleeve 2| is properly positioned on the post I8 and held by the pin 22. The inner wall sections Ba and 6b are then hooked onto the ange 23 of the disk 2 |a. A workman then enters through the manhole Zlb and connects the tie rods 29 with the flanges 25 and the lugs 32. The groups of core pins 3d and their connecting bars are then passed in to the workman and he engages said pins with the guides 33. Gravity insures that the pins shall project beyond the periphery of the inner wall. The workman now leaves through the manhole 2 b and the outer wall sections may now be assembled and secured in place. If desired, these outer wall operations may be performed by a workman outside while the workman within is the tie rods 23 and dropping of the disk 21a. from y the hooks 24. The sections 5a can then be swung inwardly and passed to the workman outside,

performing( his duties, or may even be performed before the workman enters the mould.

From the foregoing it will be seen that novel and advantageous construction has been provided for attaining the desired results, but it is to be understood that variations may be made without departing from the spirit and scope of the invention as claimed.

I claim:

l. In a mould of the class described, a pair of spaced parallel inner and outer walls each divided from top to bottom into sections engaging edge to edge along vertical seams, the sections of the two walls being equal in number, each wall having a lower cylindrical portion, an upper cylindrical portion of smaller diameter and a frustoconical portion connecting the lower and upper portions, means external to the outer wall releasably connecting its sections along its seams, a manhole provided releasable closure forming means iitted in the top or" the Vupper section of the inner wall, a central vertical post within the inner wall, bracing means extending from the post to the inner wall sections and releasably securing adjacent edge portions of said inner wall sections in assembled relation, a triad of core pins supported on each section of the inner wall in spaced relation to its edges, and means acting to protract and retract the pins of each triad simultaneously. i

2. In a mould of the class described, a pair of spaced parallel inner and outer walls each divided from top to bottom into sections engaging edge to edge along vertical seams, the sections oi the two walls being equal in number, each wall having a lower cylindrical portion, an upper cylindrical portion of smaller diameter and a frusto-conical portion connecting the lower and upper portions, means external to the outer wall releasably connecting its sections along its seams, a manhole provided releasable closure forming means fitted in the top of the upper section of the inner wall, a central vertical post within the inner wall, bracing means extending from the the post to the inner wall sections and releasably securing adjacent edge portions of said inner wall sections in assembled relation, a triad of core pins supported on each section of the inner wall in spaced relation to its edges, and means acting to protract and retract the pins of each triad simultaneously, said closure forming means including a sleeve slidable on said post, a disk on the lower end of said sleeve, an upstanding peripheral flange on said disk and means securing sf said sleeve in adjusted relation on the post, said inner wall sections being provided with downwardly opening hooks engaging over the upper edge of said flange and positioning the closure centrally of the inner wall.

3. In a mould of the class described, a pair of spaced parallel inner and outer walls each divided from top to bottom into sections engaging edge to edge along vertical seams,l the sections of the two walls being equal in number, each wall having a lower cylindrical portion, an upper cylindrical portion of smaller diameter, and a frusto-conical portion connecting the lower and upper portions, means external to the outer wall releasably connecting its sections along its seams, a manhole provided releasable closure forming means fitted in the top of the upper section of the inner wall, a central vertical post within the inner wall, bracing means extending from the post to the inner wall sections and releasably securing adjacent edge portions of said inner wall sections in assembled relation, said bracing means including pairs of eyes disposed on the meeting portions of the inner wall sections in laterally spaced relation, a disk mounted on said post and having openings spaced around its peripheral portion, bars each having a forked end provided with downwardly extending lingers engaging a respective pair of eyes, said bars each having a straight portion provided with a downwardly extending finger engaging a respective disk opening, a triad of core pins supported on each section of the inner wall in spaced relation to its edges, and means acting to protract and retract the pins of each triad simultaneously.

4. In a mould of the class described, a pair or" spaced parallel inner and outer walls each divided from top to bottom into sections engaging edge to edge along vertical seams, the sections of the two walls being equal in number, each wall having a lower cylindrical portion, an upper cylindrical portion of smaller diameter, and a truste-conical portion connecting the lower and upper portions, means external to the outer wall releasably connecting its sections along its seams, a manhole providedV releasable closure forming means fitted in the top of the upper section of the inner wall, a central vertical post within the inner wall, bracing means extending from the post to the inner wall sections and releasably securing adjacent edge portions of said inner wall sections in assembled relation, said bracing means including pairs of eyes disposed on the meeting portions of the inner wall sections in laterally spaced relation, a disk mounted on said post and having openings spaced around its peripheral portion, bars each having a forked end provided with downwardly extending fingers engaging a respective pair of eyes, said bars each having a straight portion provided with a downwardly extending nger engaging a respective disk opening, a triad of core pins supported on each section of the inner wall in spaced relation to its edges, and means acting to protract and retract the pins of each triad simultaneously, said closure forming means including a sleeve slidable on said post, a disk on the lower end of said sleeve, an upstanding peripheral flange on said disk, and means securing said sleeve in adjusted relation on the post, said inner wall sections being provided with downwardly opening hooks engaging over the upper edge of said flange and positioning the closure centrally of the inner wall.

5. In a mould of the class described, a pair of spaced parallel inner andouter walls' each divided from top to bottom into sections engaging edge to edge along vertical seams, the sections Yof the two walls being equal in number, each wall having a lower cylindrical portion, an upper cylindrical-portion of smaller diameter and a frusto-conical portion connecting the lower and upper portions, means external to the outer wall releasably connecting its sections along its seams, a manhole provided releasable closure forming means fitted in the top of the upper section of the innerfwall, a central vertical post within the inner wall, bracing means extending from the post to the inner wall sections and releasably securing adjacent edge portions of said inner wall sections in assembled relation, a triad of tubular guides extending inwardly and upwardly from the interior of each section of each inner wall section, a core pin slidably mounted in each guide for protraction and retraction into the space between the said inner and outer walls, and a vertical member for each of said triads and having the inner ends of said pins pivoted thereto.

6. In a mould of the class described, a pair of spaced parallel inner and outer walls each divided from top to bottom into sections engaging edge to edge along vertical seams, the sections of the two walls being equal in number, each wall having a lower cylindrical portion, an upper cylindrical portion of smaller diameter and a truste-conical portion connecting the lower and upper portions, means external to the outer wall releasably connecting its sections along its seams, a manhole provided releasable closure forming means iitted in the top of the upper section of the inner wall, a central vertical post within the inner wall, bracing means extending from the post to the inner wall sections and releasably securing adjacent edge portions of said inner wall sections in assembled relation, a triad of tubular guides extending inwardly and upwardly from the interior of each section oi each inner wall section, a core pin slidably mounted in each guide for protraction and retraction into the space between the said inner and outer walls, and a vertical member Vfor each of said triads and having the inner ends of said pins pivoted thereto, said closure forming means including a sleeve slidable on said post, a disk on the lower end of said sleeve, an upstanding peripheral flange on said disk and means securing said sleeve in adjusted relation on the post, said inner wall sections being provided with downwardly opening hooks engaging over the upper edge of said flange and positioning the closure centrally of the inner wall.

7. In a mould of the class described, a pair of spaced parallel inner and outer walls each divided from top to bottom into sections engaging edge to edge along vertical seams, the sections of the two walls being equal in number, each wall having a lower cylindrical portion, an upper cylindrical portion of smaller diameter, and a frusto-conical portion connecting the lower and upper portions, means external to the outer wall releasably connecting its sections along its seams, a manhole provided releasable closure forming means fitted in the top of the upper section of the inner wall, a central vertical post within the inner wall, bracing means extending from the post to the inner wall sections and releasably securing adjacent edge portions of said inner wall sections in assembled relation, a triad of tubular guides extending inwardly and upwardly from the interior of each section of each inner wall section, a core pin slidably mounted in each guide for protraction and retraction into the space between the said inner and outer walls, and a vertical member for each of said triads and having the inner ends of said pins pivoted thereto.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 140,734 Sharpe July 8, 1873 662,266 Haglin Nov. 20, 1900 Number 8 Name Date Dunlap Mar. 18, 1902 Corlett Aug. 1, 1905 Taylor Apr. 25, 1905 Osborn INov. 7, 1905 Jackson Mar. 5, 1907 Dorward June 11, 1907 Uible Aug. 13, 1907 Irwin July 17, 1928 Arborio Dec. 5, 1939 Bespalow June 30, 1942 Fama. Dec. 26, 1950. 

